1. 10 Feb, 2022 1 commit
  2. 04 Feb, 2022 8 commits
  3. 03 Feb, 2022 7 commits
  4. 01 Feb, 2022 1 commit
  5. 31 Jan, 2022 9 commits
  6. 23 Jan, 2022 6 commits
    • Linus Torvalds's avatar
      Linux 5.17-rc1 · e783362e
      Linus Torvalds authored
      e783362e
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-for-v5.17-2022-01-22' of... · 40c84321
      Linus Torvalds authored
      Merge tag 'perf-tools-for-v5.17-2022-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
      
      Pull more perf tools updates from Arnaldo Carvalho de Melo:
      
       - Fix printing 'phys_addr' in 'perf script'.
      
       - Fix failure to add events with 'perf probe' in ppc64 due to not
         removing leading dot (ppc64 ABIv1).
      
       - Fix cpu_map__item() python binding building.
      
       - Support event alias in form foo-bar-baz, add pmu-events and
         parse-event tests for it.
      
       - No need to setup affinities when starting a workload or attaching to
         a pid.
      
       - Use path__join() to compose a path instead of ad-hoc snprintf()
         equivalent.
      
       - Override attr->sample_period for non-libpfm4 events.
      
       - Use libperf cpumap APIs instead of accessing the internal state
         directly.
      
       - Sync x86 arch prctl headers and files changed by the new
         set_mempolicy_home_node syscall with the kernel sources.
      
       - Remove duplicate include in cpumap.h.
      
       - Remove redundant err variable.
      
      * tag 'perf-tools-for-v5.17-2022-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
        perf tools: Remove redundant err variable
        perf test: Add parse-events test for aliases with hyphens
        perf test: Add pmu-events test for aliases with hyphens
        perf parse-events: Support event alias in form foo-bar-baz
        perf evsel: Override attr->sample_period for non-libpfm4 events
        perf cpumap: Remove duplicate include in cpumap.h
        perf cpumap: Migrate to libperf cpumap api
        perf python: Fix cpu_map__item() building
        perf script: Fix printing 'phys_addr' failure issue
        tools headers UAPI: Sync files changed by new set_mempolicy_home_node syscall
        tools headers UAPI: Sync x86 arch prctl headers with the kernel sources
        perf machine: Use path__join() to compose a path instead of snprintf(dir, '/', filename)
        perf evlist: No need to setup affinities when disabling events for pid targets
        perf evlist: No need to setup affinities when enabling events for pid targets
        perf stat: No need to setup affinities when starting a workload
        perf affinity: Allow passing a NULL arg to affinity__cleanup()
        perf probe: Fix ppc64 'perf probe add events failed' case
      40c84321
    • Linus Torvalds's avatar
      Merge tag 'trace-v5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 67bfce0e
      Linus Torvalds authored
      Pull ftrace fix from Steven Rostedt:
       "Fix s390 breakage from sorting mcount tables.
      
        The latest merge of the tracing tree sorts the mcount table at build
        time. But s390 appears to do things differently (like always) and
        replaces the sorted table back to the original unsorted one. As the
        ftrace algorithm depends on it being sorted, bad things happen when it
        is not, and s390 experienced those bad things.
      
        Add a new config to tell the boot if the mcount table is sorted or
        not, and allow s390 to opt out of it"
      
      * tag 'trace-v5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        ftrace: Fix assuming build time sort works for s390
      67bfce0e
    • Steven Rostedt (Google)'s avatar
      ftrace: Fix assuming build time sort works for s390 · 6b9b6413
      Steven Rostedt (Google) authored
      To speed up the boot process, as mcount_loc needs to be sorted for ftrace
      to work properly, sorting it at build time is more efficient than boot up
      and can save milliseconds of time. Unfortunately, this change broke s390
      as it will modify the mcount_loc location after the sorting takes place
      and will put back the unsorted locations. Since the sorting is skipped at
      boot up if it is believed that it was sorted at run time, ftrace can crash
      as its algorithms are dependent on the list being sorted.
      
      Add a new config BUILDTIME_MCOUNT_SORT that is set when
      BUILDTIME_TABLE_SORT but not if S390 is set. Use this config to determine
      if sorting should take place at boot up.
      
      Link: https://lore.kernel.org/all/yt9dee51ctfn.fsf@linux.ibm.com/
      
      Fixes: 72b3942a ("scripts: ftrace - move the sort-processing in ftrace_init")
      Reported-by: default avatarSven Schnelle <svens@linux.ibm.com>
      Tested-by: default avatarHeiko Carstens <hca@linux.ibm.com>
      Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
      6b9b6413
    • Linus Torvalds's avatar
      Merge tag 'kbuild-fixes-v5.17' of... · 473aec0e
      Linus Torvalds authored
      Merge tag 'kbuild-fixes-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
      
      Pull Kbuild fixes from Masahiro Yamada:
      
       - Bring include/uapi/linux/nfc.h into the UAPI compile-test coverage
      
       - Revert the workaround of CONFIG_CC_IMPLICIT_FALLTHROUGH
      
       - Fix build errors in certs/Makefile
      
      * tag 'kbuild-fixes-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        certs: Fix build error when CONFIG_MODULE_SIG_KEY is empty
        certs: Fix build error when CONFIG_MODULE_SIG_KEY is PKCS#11 URI
        Revert "Makefile: Do not quote value for CONFIG_CC_IMPLICIT_FALLTHROUGH"
        usr/include/Makefile: add linux/nfc.h to the compile-test coverage
      473aec0e
    • Linus Torvalds's avatar
      Merge tag 'bitmap-5.17-rc1' of git://github.com/norov/linux · 3689f9f8
      Linus Torvalds authored
      Pull bitmap updates from Yury Norov:
      
       - introduce for_each_set_bitrange()
      
       - use find_first_*_bit() instead of find_next_*_bit() where possible
      
       - unify for_each_bit() macros
      
      * tag 'bitmap-5.17-rc1' of git://github.com/norov/linux:
        vsprintf: rework bitmap_list_string
        lib: bitmap: add performance test for bitmap_print_to_pagebuf
        bitmap: unify find_bit operations
        mm/percpu: micro-optimize pcpu_is_populated()
        Replace for_each_*_bit_from() with for_each_*_bit() where appropriate
        find: micro-optimize for_each_{set,clear}_bit()
        include/linux: move for_each_bit() macros from bitops.h to find.h
        cpumask: replace cpumask_next_* with cpumask_first_* where appropriate
        tools: sync tools/bitmap with mother linux
        all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate
        cpumask: use find_first_and_bit()
        lib: add find_first_and_bit()
        arch: remove GENERIC_FIND_FIRST_BIT entirely
        include: move find.h from asm_generic to linux
        bitops: move find_bit_*_le functions from le.h to find.h
        bitops: protect find_first_{,zero}_bit properly
      3689f9f8
  7. 22 Jan, 2022 8 commits
    • Minghao Chi's avatar
      perf tools: Remove redundant err variable · f0ac5b85
      Minghao Chi authored
      Return value from perf_event__process_tracing_data() directly instead
      of taking this in another redundant variable.
      Reported-by: default avatarZeal Robot <zealci@zte.com.cn>
      Signed-off-by: default avatarMinghao Chi <chi.minghao@zte.com.cn>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Link: http://lore.kernel.org/lkml/20220112080109.666800-1-chi.minghao@zte.com.cnSigned-off-by: default avatarCGEL ZTE <cgel.zte@gmail.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      f0ac5b85
    • John Garry's avatar
      perf test: Add parse-events test for aliases with hyphens · b4a7276c
      John Garry authored
      Add a test which allows us to test parsing an event alias with hyphens.
      
      Since these events typically do not exist on most host systems, add the
      alias to the fake pmu.
      
      Function perf_pmu__test_parse_init() has terms added to match known test
      aliases.
      Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qi Liu <liuqi115@huawei.com>
      Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
      Cc: linuxarm@huawei.com
      Link: https://lore.kernel.org/r/1642432215-234089-4-git-send-email-john.garry@huawei.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      b4a7276c
    • John Garry's avatar
      perf test: Add pmu-events test for aliases with hyphens · 34fa67e7
      John Garry authored
      Add a test for aliases with hyphens in the name to ensure that the
      pmu-events tables are as expects. There should be no reason why these sort
      of aliases would be treated differently, but no harm in checking.
      Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qi Liu <liuqi115@huawei.com>
      Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
      Cc: linuxarm@huawei.com
      Link: https://lore.kernel.org/r/1642432215-234089-3-git-send-email-john.garry@huawei.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      34fa67e7
    • John Garry's avatar
      perf parse-events: Support event alias in form foo-bar-baz · 864bc8c9
      John Garry authored
      Event aliasing for events whose name in the form foo-bar-baz is not
      supported, while foo-bar, foo_bar_baz, and other combinations are, i.e.
      two hyphens are not supported.
      
      The HiSilicon D06 platform has events in such form:
      
        $ ./perf list sdir-home-migrate
      
        List of pre-defined events (to be used in -e):
      
        uncore hha:
          sdir-home-migrate
         [Unit: hisi_sccl,hha]
      
        $ sudo ./perf stat -e sdir-home-migrate
        event syntax error: 'sdir-home-migrate'
                                \___ parser error
        Run 'perf list' for a list of valid events
      
         Usage: perf stat [<options>] [<command>]
      
         -e, --event <event>event selector. use 'perf list' to list available events
      
      To support, add an extra PMU event symbol type for "baz", and add a new
      rule in the bison file.
      Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qi Liu <liuqi115@huawei.com>
      Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
      Cc: linuxarm@huawei.com
      Link: https://lore.kernel.org/r/1642432215-234089-2-git-send-email-john.garry@huawei.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      864bc8c9
    • German Gomez's avatar
      perf evsel: Override attr->sample_period for non-libpfm4 events · 3606c0e1
      German Gomez authored
      A previous patch preventing "attr->sample_period" values from being
      overridden in pfm events changed a related behaviour in arm-spe.
      
      Before said patch:
      
        perf record -c 10000 -e arm_spe_0// -- sleep 1
      
      Would yield an SPE event with period=10000. After the patch, the period
      in "-c 10000" was being ignored because the arm-spe code initializes
      sample_period to a non-zero value.
      
      This patch restores the previous behaviour for non-libpfm4 events.
      
      Fixes: ae5dcc8a (“perf record: Prevent override of attr->sample_period for libpfm4 events”)
      Reported-by: default avatarChase Conklin <chase.conklin@arm.com>
      Signed-off-by: default avatarGerman Gomez <german.gomez@arm.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: John Fastabend <john.fastabend@gmail.com>
      Cc: KP Singh <kpsingh@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Martin KaFai Lau <kafai@fb.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Song Liu <songliubraving@fb.com>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Yonghong Song <yhs@fb.com>
      Cc: bpf@vger.kernel.org
      Cc: netdev@vger.kernel.org
      Link: http://lore.kernel.org/lkml/20220118144054.2541-1-german.gomez@arm.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      3606c0e1
    • Lv Ruyi's avatar
      perf cpumap: Remove duplicate include in cpumap.h · 24ead7c2
      Lv Ruyi authored
      Remove all but the first include of stdbool.h from cpumap.h.
      Reported-by: default avatarZeal Robot <zealci@zte.com.cn>
      Signed-off-by: default avatarLv Ruyi <lv.ruyi@zte.com.cn>
      Acked-by: default avatarIan Rogers <irogers@google.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Link: https://lore.kernel.org/r/20220117083730.863200-1-lv.ruyi@zte.com.cnSigned-off-by: default avatarCGEL ZTE <cgel.zte@gmail.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      24ead7c2
    • Ian Rogers's avatar
      perf cpumap: Migrate to libperf cpumap api · 44028699
      Ian Rogers authored
      Switch from directly accessing the perf_cpu_map to using the appropriate
      libperf API when possible. Using the API simplifies the job of
      refactoring use of perf_cpu_map.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: André Almeida <andrealmeid@collabora.com>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jin Yao <yao.jin@linux.intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: John Garry <john.garry@huawei.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: http://lore.kernel.org/lkml/20220122045811.3402706-3-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      44028699
    • Ian Rogers's avatar
      perf python: Fix cpu_map__item() building · 1d1d9af2
      Ian Rogers authored
      Value should be built as an integer.
      
      Switch some uses of perf_cpu_map to use the library API.
      
      Fixes: 6d18804b ("perf cpumap: Give CPUs their own type")
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: André Almeida <andrealmeid@collabora.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Darren Hart <dvhart@infradead.org>
      Cc: Davidlohr Bueso <dave@stgolabs.net>
      Cc: Dmitriy Vyukov <dvyukov@google.com>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: German Gomez <german.gomez@arm.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: James Clark <james.clark@arm.com>
      Cc: Jin Yao <yao.jin@linux.intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: John Garry <john.garry@huawei.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Miaoqian Lin <linmq006@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Riccardo Mancini <rickyman7@gmail.com>
      Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
      Cc: Song Liu <song@kernel.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Yury Norov <yury.norov@gmail.com>
      Link: http://lore.kernel.org/lkml/20220122045811.3402706-2-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      1d1d9af2